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onsemi SZBZX84C13ET1G
- Part No.:
- SZBZX84C13ET1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
SZBZX84C13ET1G.pdf
- Description:
- DIODE ZENER 13V 225MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,575
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Product details
Overview
SZBZX84C13ET1G from onsemi is a 13 V, 250 mW surface-mount Zener diode in SOT-23 package, designed for precision voltage regulation and reference applications with ±0.7 V tolerance at 5 mA test current, 30 Ω dynamic impedance, and 0.1 µA reverse leakage at 10.4 V. It serves as a stable shunt regulator in power supply feedback loops, overvoltage protection circuits, and voltage reference stages in portable electronics.
For engineers reviewing the SZBZX84C13ET1G datasheet, pinout, applications, or equivalent options, key selection criteria include its 13 V nominal Zener voltage, 30 Ω Zener impedance at 5 mA, −65 °C to +150 °C operating temperature range, AEC-Q101 qualification, and Pb-free RoHS-compliant SOT-23 construction.
Technical Context
This device operates as a two-terminal shunt regulator, conducting in reverse breakdown to clamp voltage across its terminals. Its Zener voltage is specified at three test currents (1 mA, 5 mA, and 20 mA), with tight tolerances (12.4–14.1 V at 5 mA) and low temperature coefficient (±11 mV/°C).
The SOT-23 package features a defined pinout (Pin 1: Anode, Pin 2: No Connection, Pin 3: Cathode), supports automated assembly, and delivers 250 mW power dissipation on FR-5 board with 500 °C/W thermal resistance junction-to-ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 13 V nominal (12.4–14.1 V min/max) at 5 mA - defines regulated output voltage in shunt configuration |
| Power Rating | 250 mW on FR-5 board - sets maximum continuous power handling without derating |
| Zener Impedance | 30 Ω at 5 mA - determines regulation accuracy under load transients |
| Reverse Leakage | 0.1 µA at 10.4 V - ensures minimal quiescent current in standby mode |
| Temp Coefficient | ±11 mV/°C at 5 mA - quantifies voltage drift over industrial temperature range |
| Capacitance | 120 pF at 0 V, 1 MHz - impacts high-frequency noise filtering and stability in feedback paths |
| ESD Rating | Class 3 (>16 kV HBM) - enables robust handling in automated PCB assembly |
Pinout & Package
SOT-23 (TO-236) plastic surface-mount package, 2.90 × 1.30 × 1.00 mm, void-free thermosetting case, cathode indicated by band, UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Connected to lower-potential node in reverse-bias regulation path |
| Pin 2 | No Connection | Internally unconnected - must remain floating per design |
| Pin 3 | Cathode | Connected to higher-potential node; voltage clamping occurs between Pins 1 and 3 |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 Qualified | Validated for automotive-grade reliability including temperature cycling, humidity, and ESD stress |
| Pb-Free & RoHS Compliant | Meets global environmental compliance requirements for industrial and consumer end equipment |
| 225 W Peak Pulse Power | Withstands 8 × 20 µs surge events without degradation - suitable for transient overvoltage suppression |
| Optimized for High-Density Layout | Small footprint (2.9 × 1.3 mm) enables placement near IC power pins for local regulation |
| Low Capacitance (120 pF) | Minimizes signal distortion in timing and RF-adjacent applications |
Applications
| Power Supply Feedback Reference | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Used in the feedback divider of a DC-DC converter to set output voltage with high accuracy. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 13 V reference point for error amplifier input. Use Value: Tight 12.4–14.1 V tolerance and low 30 Ω Zener impedance ensure <±1% output regulation under line/load variation. | Use Scenario: Placed across sensitive input rails to limit voltage spikes during hot-plug or ESD events. IC Role / Device Role / Timing Role: Passive clamping element that conducts above 14.1 V to divert excess current to ground. Use Value: 225 W peak pulse rating and Class 3 ESD immunity enable reliable protection without external TVS stacking. |
| Portable Device Voltage Monitor | Industrial Sensor Bias Reference |
Use Scenario: Monitors battery voltage in handheld medical devices by comparing against 13 V threshold via comparator. IC Role / Device Role / Timing Role: Precision analog reference source for comparator hysteresis or ADC reference scaling. Use Value: Stable ±11 mV/°C tempco and −65 °C to +150 °C operation ensure consistent trip points across ambient conditions. | Use Scenario: Provides stable bias voltage to MEMS pressure sensor front-end amplifiers in factory automation systems. IC Role / Device Role / Timing Role: Low-noise, low-drift shunt reference supplying clean 13 V to analog signal chain. Use Value: 0.1 µA leakage at 10.4 V minimizes loading error on high-impedance sensor outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84C13ET1G | Non-automotive grade; lacks AEC-Q101 qualification and SZ prefix traceability | Approved for commercial/industrial use only; not validated for automotive temperature cycling or PPAP | Select when cost sensitivity outweighs automotive qualification requirements |
| MMSZ4688T1G | Same 13 V nominal rating but higher Zener impedance (40 Ω @ 5 mA); different SOD-123 package | Requires PCB layout change due to larger footprint and different thermal profile | Choose if existing design uses SOD-123 and thermal margin allows higher impedance |
Compared with SZBZX84C13ET1G, BZX84C13ET1G offers identical electrical specs but no automotive qualification, while MMSZ4688T1G trades higher impedance and different package for broader distributor availability - both require validation for safety-critical or high-reliability deployments.
Availability
SZBZX84C13ET1G is available at Aetrix Electronics and suitable for power supply feedback references, overvoltage protection clamps, and portable device voltage monitors requiring stable component supply across automotive, industrial, and medical product lifecycles.
Supply support for SZBZX84C13ET1G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi is a global semiconductor supplier delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The SZBZX84CxxxET1G series is part of onsemi's precision Zener regulator portfolio, engineered for high-density, low-power voltage reference and protection functions in space-constrained, mission-critical systems.
FAQ
What is the Zener voltage tolerance of SZBZX84C13ET1G at 5 mA test current?
The SZBZX84C13ET1G has a Zener voltage range of 12.4 V to 14.1 V at 5 mA test current, corresponding to a ±0.7 V absolute tolerance around the nominal 13 V rating. This specification is verified per onsemi's datasheet Rev. 11 (August 2024) and reflects guaranteed performance across manufacturing lots and temperature extremes.
Is SZBZX84C13ET1G qualified for automotive applications?
Yes, SZBZX84C13ET1G is AEC-Q101 qualified and PPAP capable, with the "SZ" prefix indicating compliance for automotive and other applications requiring unique site and control change requirements. Its qualification covers temperature cycling, mechanical shock, and ESD stress per AEC standards.
What is the thermal resistance junction-to-ambient for SZBZX84C13ET1G on FR-5 board?
The thermal resistance junction-to-ambient (RJA) for SZBZX84C13ET1G is 500 °C/W when mounted on FR-5 board at TA = 25 °C. This value assumes standard 1.0 × 0.75 × 0.62 inch board dimensions and defines the steady-state temperature rise per milliwatt of dissipated power.
Does SZBZX84C13ET1G have a connected Pin 2?
No, Pin 2 of SZBZX84C13ET1G is internally unconnected (NC) per the official marking diagram and pinout definition in the datasheet. It must remain electrically floating in PCB layout and routing - no solder mask opening or trace connection is required or recommended.
What is the maximum reverse leakage current for SZBZX84C13ET1G and at what voltage is it measured?
The maximum reverse leakage current for SZBZX84C13ET1G is 0.1 µA, measured at a reverse voltage (VR) of 10.4 V - which is 80% of its minimum specified Zener voltage (12.4 V). This parameter ensures minimal standby power loss in always-on regulation circuits.
SZBZX84C13ET1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 13 V
- Tolerance:
- ±6%
- Power - Max:
- 225 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3 (TO-236)
SZBZX84C13ET1G FAQ
1.How can I place an order for SZBZX84C13ET1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZBZX84C13ET1G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SZBZX84C13ET1G reliable?
The price and inventory of SZBZX84C13ET1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZBZX84C13ET1G is usually 5 days.
3.What payment methods are accepted for SZBZX84C13ET1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZBZX84C13ET1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZBZX84C13ET1G?
SZBZX84C13ET1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZBZX84C13ET1G order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SZBZX84C13ET1G?
For technical support, including SZBZX84C13ET1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZBZX84C13ET1G requirements.
6.How does Aetrix verify that SZBZX84C13ET1G is sourced from the original manufacturer or authorized distributors?
All SZBZX84C13ET1G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SZBZX84C13ET1G meets industry standards.
7.What is the process for return or replacement of SZBZX84C13ET1G?
All SZBZX84C13ET1G units undergo pre-shipment inspection (PSI). If there is an issue with SZBZX84C13ET1G, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SZBZX84C13ET1G part is unused and in its original packaging.
Return procedure for SZBZX84C13ET1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZBZX84C13ET1G Tags
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